The surface temperature of the Sun is 5800 K. The mean radiuses of the Earth and the Sun are 6.37x106 m and 6.96x108 m, respectively. The average Earth-Sun distance 1.496x10¹1 m. 20 (a) Assume that both the Sun and the Earth are perfect blackbody, calculate the steady-state surface temperature of the Earth. (b) What are the peak wavelengths of radiations from the Sun and the Earth? (a) Some gases in atmosphere block a small portion of sun radiation, but are quite opaque to infrared light. Recalculate the steady-state temperature of the Earth, assume that the transmission efficiency of the atmosphere is 80% and 50% for visible and infrared light, respectively.

The surface temperature of the Sun is 5800 K. The mean radiuses of the Earth and the Sun are 6.37x106 m and 6.96x108 m, respectively. The average Earth-Sun distance 1.496x10¹1 m. 20 (a) Assume that both the Sun and the Earth are perfect blackbody, calculate the steady-state surface temperature of the Earth. (b) What are the peak wavelengths of radiations from the Sun and the Earth? (a) Some gases in atmosphere block a small portion of sun radiation, but are quite opaque to infrared light. Recalculate the steady-state temperature of the Earth, assume that the transmission efficiency of the atmosphere is 80% and 50% for visible and infrared light, respectively.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Quantum Physics

Section: Chapter Questions

Problem 6P

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